Originally Posted by Salespunk
I would think more weight loss than position within the car except if you are speaking about wheels. Rotational mass is approximately 8X more important than non rotating meaning that each lb that you take off your wheels equals 8 lbs off of any other part of the car. Your easiest weight savings are seats and battery. Probably 60-80 lbs available right there.
True. Only thing about replacement seats is most likely you will lose the side airbags. Not sure I'd make that compormise in a DD. I agree that you probably can't do too much to screw up the front/rear balance.